動詞 detain:

1. deprive of freedom; take into confinement
   同義詞：confine
2. stop or halt
   同義詞：stay, delay
3. cause to be slowed down or delayed
   同義詞：delay, hold up

1. The act of detaining.
   扣押，拘留拘留的行為
2. A period of time during which a vehicle, person, or material suspected of carrying a contagious disease is detained at a port of entry under enforced isolation to prevent disease from entering a country.
   檢疫期，隔離期當運輸工具、人或材料被懷疑帶有傳染性疾病，被扣留在港口進行強行隔離的一段期限，以防止疾病傳入某個國家

de.tain

v.tr.（及物動詞）
de.tained,de.tain.ing,de.tains
To keep from proceeding; delay or retard.See Synonyms at delay
阻止；拖延參見 delay
To keep in custody or temporary confinement:
拘留：被監(jiān)禁或暫時關(guān)押：
例句：
The police detained several suspects for questioning. The disruptive students were detained after school until their parents had been notified.
警察拘留了許多疑犯進行審問，搗亂的學(xué)生在放學(xué)后被拘禁了，直到通知他們的家長

Obsolete To retain or withhold (payment or property, for example).
【廢語】 扣押：保留（如款項或財產(chǎn)）

來源：
Middle English deteinen
中古英語 deteinen
from Old French detenir
源自 古法語 detenir
from Vulgar Latin *dôtenore
源自 俗拉丁語 *dôtenore
from Latin dôtinôre
源自 拉丁語 dôtinôre
dô- [de-]
dô- [前綴，表否定]
tenôre [to hold] * see ten-
tenôre [保留，關(guān)押] *參見 ten-

【引伸】
detain.ment
n.（名詞）